Type writing machine



A. I. BRIGGS. TYPE WRIHNG MACHINE. APPLICATION HLED Aue.2a. 191s.

\NENTUR dug/3 A7, J

Patented Dec. 30,1919.

4 SHEETS-SHEET 1.

Hi5 ATTn R NEY WITNEEE'JES i 0204M.

A. J. BRIGGS.

TYPE WRITING MACHiNE.

APPLICATION min mamas. 191s.

Patented Dec. 30,1919.

4 SHEETS-SHEET 2- WITNESEEEI 5% Hi5 ATTUHNEY J Qm- A. l. BRIGGS.

IYPE WRiT'ING MACHINE.

APPUCATIDN FILED mums. 191s.

Patented Dec. 30, 1919.

4 SHEETS-SHEET 3- H|5 ATTORNEY A. l. BRIGGS.

TYPE WRITING MACHINE.

APPLICATION FILED AUG.28. 1915.

Wnmasssa INVENTUR Hls ATTORNEY Patented Dec. 30, 1919.

4 SHEETS-SHEET 4- UNITED STATES PATENT OFFICE.

ARTHUR J.

COMPANY, OF ILION,

BRIGGS, 0F SYRACUSE, NEW YORK, ASSIGNOR TO REMINGTON TYPEWBITER NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Application filed August 28, 1916.

To all whom it may concern:

Be it known that I, ARTHUR J. BRIGGS, citizen of the United States, and resident of Syracuse, in the county of Onondagaand State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to the main frames of such machines.

The principal object of the invention is to produce a frame and easing structure which shall be at once suitable, serviceable and strong and at the same time of little weight and capable of being manufactured at low cost.

To the above and other ends which will hereinafter appear my .invention consists in certain features of construction and combinations and arrangements of parts, and also in a new method of manufacturing typewriter frame parts, all of which will be fully set forth herein and a particularly pointed out in the claims.

In the accompanying drawings,

Figure 1 is a front to rear vertical sectional view of a typewriter frame made in accordance with my invention and with a few of the working parts shown in position therein.

Figs. 2, 3 and 4 are perspective views on a small scale illustrating steps in the manufacture of the base-part of the frame or casing. I

Fig. 5 is a transverse vertical section of Fig. 1 taken on a plane a little in front of the type bar segment, about on the line w--m of Fig. 1. i

Fig. 6 isa top plan view of the main casting, together with a few sheet metal parts.

Fig. 7 is a front view part1 in section just back of the keyboard, on t e line y-y of Fig. 1.

Fig. 8 is a perspective view, partly broken away, of a casting constituting a portion ofthe main frame of the machine.

Fig. 9 is a lefthand end view of saidcastgllhe outside art of the framework or casin consists c iefly of four pieces of sheet meta, namely, a base 1, an upright part or wall .2 surmounting said base and two top Specification of Letters Patent.

Patented Dec. 30, 1919.

Serial No. 117,281.

plates 3 surmounting said wall 2, one on the right, and the other on the left-hand side of the machine.

The base 1 consists essentially of a single integral piece of sheet metal drawn into the form shown in the drawings. This base is preferably seamless and it comprises side walls 1, a rear wall 5, and a front wall 6.

As seen from the top it is rectangular though with rounded corners and contains two substantially rectangular openings, namely, a rear opening 7 in which the type bars and some of the other working parts are situated and a forward opening 8, Fig. 3, through which the keys 10 project upward from the key levers 11, or from such other devices as may be connected with said keys. A cross bar 12 integral with the balance of the base, connects the two side walls 4 and separates the two openings 7 and 8. An int ral horizontal marginal flange 13 surroun s the opening 7 and a marginal flange 14: around the opening 8 is bent into a curved form, best shown in Figs. 1 and 7. All of the arts thus far described are comprised in t e integral seamless sheet metal base.

The mode or method of manufacturing the base can be understood from Figs. 2, 3 and 4, which illustrate successive forms through which said base passes in the process of manufacture. Fig. 2 shows the piece of sheet metal drawn up into the shape of a sort of rectangular pan with its vertical walls 4:, 5 and 6 and a flat top 15 occupying the space subsequently to be cccupied by the opening 7 and the flange 13, and the sloping top 16 occupying1 the space subsequently to be occupied by t e opening 8 and flange 14. After the formation of this plan the to 15 is cut away to form the opening 7, caving enough of said top to constitute the flan e 13 and the horizontal part of the cross ar 12, all as shown in Fig. 3; and the sloping top 15 is cut away as shown in Fig. 3 to form the opening 8, leaving, however, a flange around said open in The flange 14 is then pressed intothe curved form that it is designed to have in the complete machine as shown in Fig. 1. Various holes are made in the base, as. required, including certain holes 17 in flan 13, as shown in Fig. {1, and hereinafter to ie referred to. As shown in the n'csent in stance and preferably, all of the e-ornefsare rounded including the vertical cornersbc tweenthe walls 4, 5 and 6 and also the cor- 11ers between the vertical. Walls and the flanges l3 and 14. The whole result is a. base of neat and smooth outline and, as to its upper part. rigid. The rigidity of the base is, however-,7 increased by some of the other parts added to the machine. Included among these are angle-pieces or strips 18 suitably secured around the inner surface and near the lower edge of the base at such points as needid. In the present instance there are two such strips on each of the side walls 4' and one along the front walls 6. I n the present instance these flanges are shown secured in place by rivets 20. In addition to their function of stilf ning the frame these flanges are or may he need for other purposes. For example, the rubber feet ii of the machine are secured to the horizontal parts of these angle-strips.

The Vertical wall 2 above referred to consists essentially of a strip of sheet metal bent transversely of its length to forin the the three sides of a rectangle and parts of the fourth side. This strip extends across the front of the machine resting at its lower edge on the cross bar 12 andthence toward the back of the machine resting on the flange 13; and each end of it is thence bent toward the middle of the machine. The two ends of the strip in the present instance extend only part-way toward the middle of the machine, however, terminating at the points marked 22 in Fig. 5. This wall of the casing can be secured to the base 1 in a variety of ways but I prefer the means shown in the drawing which con sists of a series of ears 23, Figs, 1 and 5. formed on the lower edge of the wall and projecting into and through the holes 17, Fig. (l, in the flange 13 and cross bar 12'. The lugs 23, after being inserted in place are bent or clenched to the under side of the flange. In Fig. 4 I have shown eight holes 17 but in actual practice I employ a larger number. i

The top plates 3 cover up the right and left-hand. sides, of the machine leaving. a well between them for the operation of the type bars. Each of these is formed around its outer edge with 51 depending flange 24, said flange asshown in the present instance being along the front and rear edges and the outer edge of each of the top plates. Each of said. to pla tesnear its forwardend has an npwardifv curved part struck up therefrom to assist in protecting and to some extent hiding the end type bars and their pad, as will be explained a little more fully hereinafter. lath of these top' plates is pressed upout of an integral piec cof sheet metal. They can be secured in place in a variety of we s. As shown in the drawing the front line of thb wall 2 has near its right and left-hand ends cars 26 bent rearward therefrom and on which the top plates lie. A screw or bolt 27 passes through each of the top plates and its corresponding ear and has a nut 28 thereon underneath the car 26. This bolt secures the forward part of the top plate in place and the rear part is secured in a manner to be des'iribedhhereinafter. Beftwcen the two top p ates t e pp er ed e o the Wall 2 is bent downward forinin g a still-chine flange 01 part 30, Fig. 1'.

The sheet metal framework above described is supplem nted by Castings of which the frame shown in the drawing comprises two, the smaller one ofwhich consists of a transverse bar 31 in the base of the machine. said bar being secured to the base casing by means of four screws 32, two at each end of the bar. This bar is useful as a stiffening: member for the frame. situated as it is between the lower edges of the two side walls 4 and at about midway of the lengths of said walls; but its principal function is to rovide supports for the sub-levers 33, which are pivoted in slots 34, Fig. 7, in the front face of said bar andare pivoted on a wire or rod 88, which in the present instance is inserted in a longhole through the bar extending the entire length thereof. Said hole preferably registers with holes 40 Fig 4, i'n the side walls 4 so that the rod can pushed through into place after the cast-ihgSI is in the machine.

The main casting is near the rear of the machine and its gie'neral form will be best understood from Figs. 8 and 9, which show it detached" from the machine. Said casting is shown in place in the machine in Figs. 1, 5 and ,6. As viewed from the front in Fig. 6 this castingis se '11. to include atransverse horizontal. bar 4 at the top of the machine, a parallel transverse bar 42in the base of the inachine,, and right and left hand nneal was onnecting said horizontal bars. 1 ie type barse' "iiiefit 44 is an integral part' of' this czistih'gflfieih}: connectedat its upper ends with the cross bar 4:1 and at its lowerend"licing eoniiectdat 45 with tlie1niddie of the lb ierfcross ba f3. T e printing hey lcversd-t are ivo ted inth'e cross bar 42.

he upper bar 41 constitutes the main carriage rail,,and the rear carriage rail 46 n ounfted theieom ,It tf'us beseen that the key lever system-ts type bar system and the carriage uppojrt are a] on one in teg'ral casting, whibh is one of the features that makes the sheet, metal framework practicable, especially thefact that the can riag'e rail a d the type bar segment are inte' ral, this insnring pro er cooperation oft c type has and the p men.

The main casting is secured to the sheet metal casing at four points. Said casting includes two lugs 47 Figs. 5 and 8, constitutin in effect prolongations of the bar 42 and t iese lugs are machined ofl at their ends to fit against the inner surfaces of the walls 4 of the base of the machine, where they are secured by screws 48 passing through said walls 4 and screwed into the lugs 47. Said casting is secured at its upper part to the sheet metal framework by means of two screws 49, Fi 5-, coming up from beneath and passing irough ears 50 bent in from the wall 2 and also through the top plates 3 and screwed into lugs 51 at the upper part of the casting, Figs. 5 and 6. These screws bind rigidly together the main casting, the wall 2 and the rear ends of the top plates 3. Each of said top plates has a slot out therein from the inner edge thereof, said slot being designed to receive the art 43 of the casting. It will be perceive that the main casting is secured in and su ported by the sheet metal casing and also that it strengthens and stifl'ens said casing, being secured to the base of said casing at two points and being secured also to the upper part of said casing at two points, and the four. said points being situated at the corners of an upright quadrilateral.

The bar 42 has a depending flange part formed with vertical slots 52, Fig. 5, in which the key levers 11 are pivoted on a pivot wire or rod 53, Fig. 1 which is laid into a longitudinal slot 54 cut in the back surface of said flange. Each of said key levers has a depending arm 55 to which is connected the restoring spring 56 of the key lever. Said springs in the present instance are shown as coiled tension springs, secured at their forward ends to a channel bar 57 lying transversely across the machine and secured at its ends to the under sides of the angle bars 18 by means of screws 58. Each of the sublevers 33, in the form of type action illustrated in the drawing, has a forwardly and upwardly inclined arm with a headed pin 60 at the front end thereof, said pin playing in a slot 61 formed in a depending part of the he lever so that when the key is depressed t is inclined arm of the sublever is also depressed. The sublever has an upstandin arm which is connected by means of a ink 62 with a type bar 63 which lies in one of a series of slots 64 out in the type bar segment 44. All of said type bars are pivoted on a pivot wire 65 lying in a circumferential slot 66 out in said type bar segment. Each of the type bars carries a type 67 at its forward end and all of said type bars rest on a pad 68. This pad lies in a se mental or arc-shaped channel bar 69 Whic is supported by two arms or ears 70, Fi 1, to which the channel bar is riveted. Thse arms 70- project forward edges bent from a U-shaped plate of sheet metal 71, Fig. 7, which is secured b means of screws 72 to the under side of t e cross bar 12 of the framepiece. Preferably a long fiat strip 73 is, however, laid immediately under the cross bar 12 for strengthening purposes. Beneath the plate 71 there is a wooden bar 74 having a felt pad 7 5 secured to its under edge and constituting the stop for arresting the upward motion of the key levers 11. Strips 76 of the same thickness as the plate 71 are shown inserted at the ends of said plate 71, and the bar 74 is secured in position by wood screws 77 passing down through the sheet metal parts into the bar 74. The left-hand post 43 is shown with a bracket 78, Fig. 5, projecting therefrom to support a s Jring drum to propel the carriage.

he carriage itself can, of course, be of any suitable construction as far as the present invention is concerne but preferably is e upper cross bar 41 of the main casting constitutes the support for said carriage. It is advantageous to have the support integral with the type bar segment 44 or at least to have these two parts rigidly connected together in order that the type bars may be certain to cooperate properly with the platen. I prefer to make said type bar segment an integral part of the casting as shown but the desired rigidity can, of course, be brought about by securing said segment to said main casting.

In the present instance the forward edge of the cross bar 41 is formed with a groove 80 for coiiperation with bearing balls or rollers 81. The rail 46 can be made integral with the casting but in the present instance said rail is shown as a piece of sheet metal secured by screws 82 to the rear surface of the bar 41, said sheet metal being bent first forward and then backward to produce a rearwardly facing groove for cooperation with hearing balls or rollers 83. The carriage itself, as shown in the present instance, comprises a rail part 84 consisting of a bar or plate of sheet metal having an upper horizontal art and its forward and rear first downward at angles of 45 and thence inward at angles of to form two grooves facing the grooved stationary rails and cod erating with the balls 81, 83, as shown. he rear rail 46 has sufiioient resilience to take up all looseness in the bearings and to obviate the necessity for any adjustment of the bearin s. As shown in the present instance the rail part 84 of the carriage is shown surmounted by another sheet metal plate 85 havin its ends bent up form brackets 86 in w ieh are journaled the axles 87 of the platen 88.

It will be erceived that the main frame of the machin in the precise form shown in the drawings consists essentially of four pieces of sheet metal and two castings, that theseperts a're of little weight zind are very mes'o 'oiheii-to thei end. deeignee as to be l'l id zilillstron' This frame is in {feet a lmostas st't'on%1 and rigid aml, perhaps; quite as sti-ong an rigid Lethe 11inch hfavi'e'f and more expensive east-iron gam s here totoi'e employed, and it is very neat an pleasing to hhndle, with rounded comet's, there being few sh'er i eli' fes ex ceea.

It will be undei'swddge (nurse, that vahious' chin es danb mitdein the: details of coiis tfluc on and a'il'hng etnent Withoht depa'ftingifronl m intention;

13 the terih"fdliuwh t1?, used in; this sriecifibatioti and in the olloi'iling" cl'slirns; ap plitinfnt" desires to dist ifiglli sh' construetion from othe'r' constrictions wherein the sheetmetefis first ciit onhlan tecl' out from a strip to the desired sha e or oontout'that thjpzixts' areto haive in the finished mine, and wherein after Sllchctlttlngbilt fi Ild'Sha'P- ing operation the sfripistobe folded; along predetermined lines and seeurecl at its ends to roduoe the desired construction. The term chewnmp herein used concerns only the pr'odnotioh of the bttse frame ff'oin a solid or uncut sheet of metal drawn, swagecl or extiudecl into the construction claimed, as (listingili bed from a base flame hevin'g' its foi rsides-ihhedflfrom e previojusly prepared blink foldetl transversely al'oii'g'" pnedetermined lines. k k I mLtI zisnew and diie' to'secnre by Ltters'l fatfe'rit5 is:'

1. Ill 9L tyj'gleivriti ng machine; a main frame" oolt"i t'isirl' in oonibinatlionzi base part clranin ufi out 0? en integ'ial: piece of sheet metal with integral side alncl end Walls and flanges, and an inte ml cross bar; and an additiclfial Wall mmi tecl 0n and semiied to said ciossbar and flhnges.

2. In a typewl'iting mzitiliine, a main frame comprising in co bination a base leifi diavffn up Olllt of an integral pieo of shet' rntelyvithintegral side ahd end wells; anti an mqegmt c'r oss hell; e ad d fiionel fall ni'o" te on and sedlird 1 hen; (ind finges; and a) 501 plete on Said addltlblipl wan,

3'. Ii 9', typ'wlit'i'lig m chine, a' ni'aifi fra 'zie'" -GOfili f1SiIl in o inhi'nsitioli a' base part, 2i .slieet liietal" well sll'niiiounting said basepart e top glete oh s'tidwall and at main oastings eeurd' at the lower perms-n ther'o base and at the uppe po-r- 4'. n a typev iriting meehine, a main frame comprising in combination e baise pert dr'nir n' up out of sheet metal, an upright part of sheet mtel seblired to said base part at least onetop pleiqeon said up- 1- ht art, and a main cast'mg secured at thellowei porti'o'ii tliereofi said base" and passing through said upright part and said top plate or top plates;

5; In a ty'ewritlng machine, the combinatibii' wit a cawiageg type bets, and. key levers; of a sheet metal casingand a main casting sebured in and shppoffiefl by said c'sising; the upper p'erfi of sand casting eonstitutlfigf a catria'ge mil, and another part of said casting constituting a segmental support for said tg pe Hat's.

6. In a typewrit n'g' mebhine'; the winemation with a carrig at'itla seiies of type belts; of emain ff'arhe compneihga cesing ariiia catiting suiipoftetl by said casing, one poxtion' of seid casting coneeimeag a cerfiege will, and another portion of'said oestmg cotli'stitillting' a t 'pe he segment;

7. In- :t front stli (e typwritifi machine, the coinbifietion with a cal'rfid a sii-es of front strike type bars and key levers and connections to said type b a'xs, of a main frame comprising a sheet metal cesing and a main casting; said casting-having an up er transverse bar constituting a cerria e' rail, a lower' transversebar oonstifilting a key lever support, and an infielindiate seg hent to which saitl type hers are pivoted. V

8. In a front strike typeWfitin'g maehine, the combination with a cerriag'e,'type bars and key levers a deohnecftons to seld'ty e loans, of: a main me in "hiding as oxfe e ement thereof 2t casting, said casting eonstituting the suppot't for said oariiage, said type hers and said; key le veisj.

91 In a front Stiil ie n giolline,

the combination With a oarri ge, type hers,

key leve'is, and donne'ctionsf am said levers to said type here; of a; casting" in the feel of the machine, said' casting" comprising a oarrie "e mil portion, a portieilfiowhi'eh the key levers arepivotecl, posts conneetin'g the two recited poi tibns, and a type bar' segment, he ends of the Se coniietiting with t e carriage ail me the middle of the seg'rneiiil conrlecting with the key lever soppee; and e czisiiig or fmmewofk in which em o'zist in" is mmih ed; I

10. In a oiit stiike typewriting mabhine, the ooinhin'zition wit a. carlitt'g'e, t" be Here, my levers and corineetiofis, incl'u i s uloleversbetweensaid ke"- levers and sei type were; of a min mine doihpi-isin '1 a sheet metal oixsin a casting suppo'lte by said cze'ng and having one poi'ti'on thereof obnsti fiting a cerfia'ge rsiil and another portion thereof cohstitllting a; t We loaf Segment; alld a cross los /unsupported i25 said eaemg and on which said slib le'vers are mounted".

11. Inn front strike typewriting machine, the combination with a cafrisige and front s'tfike type bars, of a main frame oom brising a, seeing and a casting mofinteii in said oasin, send ca tin haifl 3, tr nsver'seiup er ba r and a; aeh xrehee' l wi em, said 10 er bar secured in the base of said casing, and said casting comprising also a type bar segment connecting at its ends with said upper bar and connecting at its middle with said lower bar.

12. In a front strike typewriting machine, the combination with a carriage, and front strike type bars, of a main frame comprising a casing and a casting mounted in said casing, said casting having a transverse upper bar and a transverse lower bar, said lower bar secured in the base of said casing, and said casting comprising also a type bar segment connecting at its ends with said upper bar and connectin at its middle with said lower bar, and sai upper bar constituting a carria e rail.

13. n a front strike typewriting machine, the combination with a carriage, type hare key levers, and connections from said key levers to said type bars, of a main frame comprising a sheet metal casing having a base part and an upper part, and an upright casting in the rear of said casing, said casting secured at its upper part to the upper part of said casing and its lower part secured in the base part of said casing, and said casting comprising a carriage support and a type bar segment.

14. In a front strike typewriting machine, the combination with a carriage, type bars and means for operating said type bars, 0 a main frame comprising a casing and a castin mounted in said casing, one portion of sai casting constituting the carriage support and another integral portion constituting the type bar segment.

15. In a, front strike typewriting machine, the combination with a carriage, type bars, keys, and connections including sub-levers from said keys to said type bars, of a main frame comprising a casing, a cross bar on which said sub-levers are mounted, and a main casting, said main casting including a carriage rail and a type bar segment.

16. In a front strike typewriting machine, the combination with a carriage, type bars, key levers, and connections including sublevers between the said key levers and said type bars, of a main frame comprising a casing, a transverse bar on which sald sublevers are mounted, and a main casting, said casting including a carriage rail, a type bar segment, and a key lever support.

17. In a front strike typewriting machine, a main frame comprising in combination a sheet metal casing having a base part and an upper part, and a casting occupying an upright position in said casing and secured thereto at both sides of the machine both in said base part and also in said upper part of the casing.

Signed at Syracuse, in the county of Onondaga, and State of New York, this 24th day of August A. D. 1916.

ARTHUR J. BRIGGS.

Witnesses:

Anonsrns J. BARNES, FRANK S. LEWIS. 

